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D♭ Dominant 7th (♭5) :: D♭ F G B

A
E
C
G
♭5
3
D♭
♭7
♭5
D♭
♭7
3
D♭
♭7
♭5
3
D♭
♭5
3
♭7
⬤ ⬤
♭5
⬤ ⬤
F B
D Diminished 7th :: D F A♭ B

A
E
C
G
♭3
♭5
𝄫7
D
♭5
𝄫7
D
♭3
𝄫7
D
♭3
♭5
D
♭3
♭5
𝄫7
⬤ ⬤
⬤ ⬤
A♭ B
D♭ Minor 11th :: D♭ E A♭ B E♭ G♭

A
E
C
G
♭3
D♭
5
♭7
11
9
D♭
5
♭3
♭7
9
11
D♭
♭3
♭7
5
9
11
D♭
♭3
5
9
♭7
11
⬤ ⬤
♭3
⬤ ⬤